AR245461A1

AR245461A1 - Procedure for synthesising sulphonated polymers that are soluble in water.

Info

Publication number: AR245461A1
Application number: AR30626686A
Authority: AR
Original assignee: Nalco Chemical Co
Priority date: 1986-12-19
Filing date: 1986-12-19
Publication date: 1994-01-31

Abstract

UN PROCEDIMIENTO PARA SINTETIZAR POLIMEROS SULFONADOS SOLUBLES EN AGUA, QUE TIENEN UNIDADES REPETIDAS AL AZAR, Y DE LA FORMULA (I) EN LA CUAL: R ES H Y ALQUILO; M ES HIDROGENO, UN METAL ALCALINO, UN METAL ALCALINOTERREO, AMINAS TERCIARIAS Y UN ION DE AMONIO, Y MEZCLAS DE ESTOS; R' ES UN GRUPO DE CONEXION HIDROCARBONACEO MULTI-COVALENTE QUE TIENE DE UNO A DIECISEIS ATOMOS DE CARBONO Y ESALQUILO, CICLICOS, AROMATICOS, HETEROCICLICOS, OLEFINICOS, Y SUS MEZCLAS; X ES OH, A, B Y D SON NUMEROS ENTEROS QUE MANTIENEN LAS RELACIONES SIGUIENTES: A/B ES DE CERO A 100, B/D ES DE 0.01 A 100, A/D ES DE CERO A 100, Y LA SUMA DE A + B + D ES SUFICIENTE PARA DAR UN PESO MOLECULAR MINIMO DE 1000; LA RELACION DE: (A + B) ES DE 20:1 A 1:100, M VARIA DE 0 A 16 Y N VARIA DE 1 A 16, SIEMPREQUE CUANDO M SEA CERO, R' ES UN GRUPO DE CONEXION SELECCIONADO ENTRE ALQUILO LINEAL, CICLICO, OLEFINICO, AROMATICO Y SUS MEZCLAS Y, ADEMAS, SIEMPRE QUE LA SUMA DE M + N SEA DE 1 A 20; DICHO PROCEDIMIENTO, QUE CONSISTE EN LA REACCION, EN UN DISOLVENTE COMUN, DE: A. UN POLIMERO, QUE TENGA GRUPOS FUNCIONALES DE AMIDA PENDIENTE, DE ESTRUCTURA (II), CON UN REACTIVO QUIMICO (B) DE FORMULA (III), LA REACCION DE LA AMIDA DEBE TENER UNA CONVERSION DEL 25%, RECUPERANDO EN SEGUIDA EL POLIMERO SULFONADO SOLUBLE EN AGUA.A PROCEDURE FOR SYNTHESIZING SULPHONATED POLYMERS SOLUBLE IN WATER, WHICH HAVE REPEATED UNITS AT RANDOM, AND OF THE FORMULA (I) IN WHICH: R IS H AND ALKYL; M IS HYDROGEN, AN ALKALINE METAL, AN ALKALINE TERRAIN METAL, TERTIARY AMINES AND AN AMMONIUM ION, AND MIXTURES OF THESE; R 'IS A MULTI-COVALENT HYDROCARBONACEOUS CONNECTION GROUP THAT HAS FROM ONE TO SIXTEEN ATOMS OF CARBON AND ESALKYL, CYCLICS, AROMATICS, HETEROCYCLES, OLEPHINICS, AND THEIR MIXTURES; X IS OH, A, BYD ARE WHOLE NUMBERS THAT MAINTAIN THE FOLLOWING RELATIONSHIPS: A / B IS FROM ZERO TO 100, B / D IS FROM 0.01 TO 100, A / D IS FROM ZERO TO 100, AND THE SUM OF A + B + D IS ENOUGH TO GIVE A MINIMUM MOLECULAR WEIGHT OF 1000; THE RATIO OF: (A + B) IS 20: 1 TO 1: 100, M VARIABLE FROM 0 TO 16 AND N VARIABLE FROM 1 TO 16, ALWAYS WHEN M IS ZERO, R 'IS A SELECTED CONNECTION GROUP BETWEEN LINEAR RENTAL, CYCLIC, OLFINIC, AROMATIC AND ITS MIXTURES AND, ALSO, ALWAYS THAT THE SUM OF M + N IS FROM 1 TO 20; SAID PROCEDURE, WHICH CONSISTS OF THE REACTION, IN A COMMON SOLVENT, OF: A. A POLYMER, THAT HAS FUNCTIONAL GROUPS OF PENDING AMIDE, OF STRUCTURE (II), WITH A CHEMICAL REAGENT (B) OF FORMULA (III), THE REACTION OF THE AMIDA MUST HAVE A CONVERSION OF 25%, RECOVERING THEN THE SULPHONATED POLYMER SOLUBLE IN WATER.